Instructions-Parts List
High Pressure Fluid
306878ZAA
Regulators
For use in airless spray systems to control and regulate fluid pressure to one spray gun,
dispensing valve, or atomizing head. For professional use only.
Model 206661, Series G
1000-3000 psi (7-21 MPa, 70-207 bar)
Regulated Fluid Pressure Range
Model 217576, Series D
200-1000 psi (1.4-7 MPa, 14-70 bar)
Regulated Fluid Pressure Range
EN
3000 psi (21 MPa, 207 bar) Maximum Working Pres s ur e
Important Safety Instructions
Read all warnings and instructions in this
manual before using the equipment. Save
these instructions.
Contents
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Before Installing the Fluid Regulator . . . . . . . . . . 5
Installing the Fluid Regulator . . . . . . . . . . . . . . . 5
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . 6
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pressure Relief Procedure . . . . . . . . . . . . . . . . . 7
Spray Tip Installation and Removal . . . . . . . . . . 7
Trigger Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Adjusting the Regulator . . . . . . . . . . . . . . . . . . . . 8
Flush the Equipment . . . . . . . . . . . . . . . . . . . . . . 8
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Repairing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Fluid Pressure Gauges . . . . . . . . . . . . . . . . . . . 12
Compression Springs . . . . . . . . . . . . . . . . . . . . 12
Technical Specifications . . . . . . . . . . . . . . . . . . . . 13
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 14
2 306878ZAA
Warnings
WARNING
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When
these symbols appear in the body of this manual or on war ning labels, refer back to thes e warnings. Product-specific
hazard symbols and warnings not covered in this section may appear throughout the body of this manual where
applicable.
SKIN INJECTION HAZARD
High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like
just a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.
• Do not spray without tip guard and trigger guard installed.
• Engage trigger lock when not spraying.
• Do not point gun at anyone or at any part of the body.
• Do not put your hand over the spray tip.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Follow the Pressure Relief Procedure when you stop spraying and b efore cleaning, ch ecking, or
servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses and couplings daily. Replace worn or damaged parts immediately.
306878ZAA 3
Warnings
WARNING
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Specifications in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical
Specifications in all equipment manuals. Read fluid and solvent manufacturer’s warnings. For
complete information about your material, request Safety Data Sheets (SDSs) from distributor or
retailer.
• Do not leave the work area while equipment is energized or under pressure.
• Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine
manufacturer’s replacement parts only.
• Do not alter or modify equipment. Alterations or modifications may void agency approvals and
create safety hazards.
• Make sure all equipment is rated and approved for the environment in which you are using it.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
• Wear hearing protection when operating this equipment.
• Do not lift pressurized equipment.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.
• Read Safety Data Sheets (SDSs) to know the specific hazards of the fluids you are using.
• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
4 306878ZAA
Installation
Installation
Fluid pressure regulators are used for accurate positive
control of the fluid pressure to spray guns, dispensing
valves or atomizing heads.
Regulators installed at circulating line take-offs or
pumps are used to reduce main line pressure and
maintain the desired fluid pressure to the spray gun,
dispensing valve, or atomizing head.
Before Installing the Fluid
Regulator
1. Determine placement of the fluid regulators in system.
2. Install a ball valve for inlet and outlet of the regulator.
3. Install temporary plumbing between the ball valves.
4. Thoroughly flush the system to remove metal chips
and other contaminants and to check for leaks.
Installing the Fluid Regulator
1. Remove the temporary plumbing and install one
regulator for each spray gun. A mounting stud,
washers, and locknut are provided for mounting the
regulator either from the bottom or side.
2. Put sealer on threaded connections, except on
swivel unions as it interferes with the swivel action.
3. Connect the fluid supply line to the 3/8 npt(f) inlet of
the fluid regulator.
4. Connect the fluid line between the gun and the regulator’s 1/4 npt(f) outlet of choice.
NOTE: Make sure that the direction of the fluid flow
agrees with the IN and OUT markings on the regulator body.
5. Flush and test the entire system.
306878ZAA 5
Installation
Single Direct Spray Station
E
Figure 1
F
C
G
D
B
A
Multiple Circulating Spray Station
Figure 2
G
A
E
C
J
H
I
F
K
Typical Installation
KEY
APump
B Air Regulator
C Fluid Regulator
D Gauge
E Spray Gun
F Fluid Drain Valve
G Supply Container
H Back Pressure Valve
I Fluid Supply Line
J Fluid Return Line
K Back Pressure Regulator
6 306878ZAA
Operation
Operation
Pressure Relief Procedure
Follow the Pressure Relief Procedure whenever
you see this symbol.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, splashing
fluid, and moving parts, follow the Pressure Relief
Procedure when you stop dispensing and before
cleaning, checking, or servicing the equipment.
1. Engage trigger lock.
2. Close the bleed-type master air valve.
3. Disengage the trigger lock.
4. Hold a metal part of the gun firmly to a grounded
metal pail. Trigger the gun to relieve pressure.
5. Engage the trigger lock.
Spray Tip Installation and
Removal
To avoid serious injury from skin injection, do not put
your hand in front of the spray tip when installing or
removing the spray tip and tip guard.
NO YES
Trigger Lock
Always engage the trigger lock when you stop spraying
to prevent the gun from being triggered accidentally by
hand or if dropped or bumped.
6. Open all fluid drain valves in the system, having a
waste container ready to catch drainage. Leave
drain valve(s) open until you are ready to spray
again.
7. If you suspect the spray tip or hose is clogged or
that pressure has not been fully relieved:
a. VERY SLOWLY loosen the tip guard retaining
nut or the hose end coupling to relieve pressure
gradually.
b. Loosen the nut or the coupling completely.
c. Clear the obstruction in the hose or tip.
306878ZAA 7
Operation
Adjusting the Regulator
The fluid pressure regulator controls pressure down
stream from its outlet.
NOTE: The inbound fluid pressure needs to be higher
than the set point fluid pressure.
To adjust the fluid regulator, first, back the knob out until
there is no spring pressure. Then, turn the knob clockwise to increase the pressure.
NOTE: If you are using an accessory fluid pressure
gauge, relieve the spray gun line when reducing pres-
sure to ensure a correct gauge reading.
Adjust the pump air pressure and the fluid regulator for
the best spraying combination. In a circulating system,
also adjust the back pressure valve.
Record all the settings for future reference. The valve
cylinder (7) has exterior markings (set points 1 to 8) for
repeat settings.
Flush the Equipment
4. Open the fluid regulator by turning the adjusting
knob (6) fully clockwise.
5. Supply solvent to the system. Set pump to the lowest possible pressure, and start pump.
6. Flush until thoroughly clean.
7. Adjust the fluid regulator to return to the desired
fluid pressure setting.
To avoid fire and explosion, always ground e quipment
and waste container. To avoid static sparking and
injury from splashing, always flush at the lowest possible pressure.
• Flush before changing colors, before fluid can dry in
the equipment, at the end of the day, before storing,
and before repairing equipment.
• Flush at the lowest pressure possible. Check connectors for leaks and tighten as necessary.
• Flush with a fluid that is compatible with the fluid
being dispensed and the equipment wetted par ts.
1. Record the pressure adjustment setting of the regulator before flushing.
2. Shut off the pump and follow Pressure Relief Pro-
cedure.
3. Never exceed the maximum working pressure of the
lowest rated system component.
8 306878ZAA
Maintenance
COMPONENT RUPTURE HAZARD
To reduce the risk of serious bodily injury, including
fluid injection or splashing in the eyes or on the skin:
• Always follow the Pressure Relief Procedure on
page 7 before adjusting, cleaning, repairing, or
removing the regulator from the system.
• Never pressurize the system with the fluid regulator adjusting knob remo ved.
• Never completely remove the adjusting knob
when system pressure is present.
Flushing
Refer to Flush the Equipment on page 8 for the flushing procedure.
Cleaning
When changing fluids or colors, the regulator should be
disassembled and cleaned. Regular cleaning and
inspection, and lubrication of the piston (15) and piston
packing (10) are necessary to keep the fluid regu lat or
working properly.
Maintenance
Repairing
Normally, only the ball support (21), seat (20) and piston
packing (10) will ever need replacement. Repair Kit
220139 is available to replace these parts. See Parts on
page 10.
1. Lubricate the piston packing (10), piston (15), and
spring locater (11) with lithium base grease.
2. Place the washer (19) over the pointed end of the
piston (15).
3. Place the packing (10), with its lips facing down,
over the pointed end of the piston (15) and against
the washer (19).
4. Insert the piston (15) into the bottom of the cylinder
(7) and gently work it into place.
5. Reassemble the remaining parts in reverse order of
disassembly. Torque the valve seat (20) into the
housing to 175-200 in-lb (20-22 N•m). Over-tightening could break off the hex portion of the seat.
1. Relieve all the air and fluid pressure in the system.
2. Remove the regulator from the system.
3. Disassemble the regulator. See Parts on page 10.
Clean and inspect all parts.
NOTICE
Use special care when handling the hard carbide
portions of the piston (13) and seat (12). Damage
will cause poor operation and leakage.
306878ZAA 9
Parts
6
9
11
7
Install with
lips down
*10
19
3
*15
16
18
8
13
8
5*
20*
17
2
14
12
26
1
4
Use Loctite
®
Grade 601 on
threads
Torque to
55 to 65in-lb
(6.3 to 7.3N•M)
1
Parts
Torque to
175 to 200in-lb
(20 to 22 N•M)
Use Loctite
Grade TL242 on threads
Model 206661, Series G
Mounting
Parts
®
Includes items 1-20
Ref. Part Description Qty.
1 100322 LOCK WASHER, ext shkprf; 7/16”
(Model 206661 only)
100639 LOCK WASHER, ext shkprf; 3/8”
2
2
(Model 217576 only)
2 101885 SCREW, soc hd cap; 1/4–20 x 1–
3/4”
3 101954 RING, int retaining; 0.75” (19 mm)
housing dia.; cadmium plated
4 150513 NUT, jam; 7/16–20
(Model 206661 only)
100307 NUT, jam; 3/8–16
5* 150670 GASKET; copper
6 166976 KNOB, adjusting
(Model 217576 only)
10 306878ZAA
2
1
1
1
1
1
Ref. Part Description Qty.
7 166982 CYLINDER, regulator
8 166985 SEAL, o-ring; PTFE
9 166986 SPRING, helical compression
(Model 206661 only)
501511 SPRING, helical compression
(Model 217576 only)
10* 111796 PACKING, u-type; PTFE
1
2
1
1
1
Model 217576, Series D
Includes items 1-26
Ref. Part Description Qty.
11 166988 LOCATER, spring
12 167001 STUD, mounting; 1/4 npt; 7/16–20
(Model 206661 only)
156953 STUD, mounting; 1/4 npt; 3/8–16
(Model 217576 only)
13 177125 HOUSING, regulator
14 167016 CAP, end
15* 220900 PISTON, valve
16 167018 BAR, piston
17 167019 BAR, valve ball support
18 167020 SPACER, bar
19 171885 WASHER, back-up; acetal
homopolymer
20* 248899 SEAT, valve, support ball
26 100023 WASHER; 3/8”
(Model 217576 only)
1
1
1
1
1
1
1
1
2
1
1
1
Parts
* Parts included in Kit 220139 (purchase separately).
Keep these spare parts on hand to reduce down time.
306878ZAA 11
Accessories
Accessories
Use Only Genuine Graco Parts and Accessories
Fluid Pressure Gauges
Attaches to optional regulator outlet.
2 in. (51 mm) dial.
102397 0–3000 psi (0–21 MPa, 0–207 bar) 1/4
npt(m) center back fitting
101696 0–1000 psi (0–7 MPa, 0–70 bar) 1/4
npt(m) bottom fitting
UHMW Polyethylene U-Type Packing
108317 (included in Repair Kit 220135)
Use instead of 111796 (ref. 10), with abrasive fluids.
Compression Springs
NOTE: On Model 206661, standard spring 166986 (ref.
9) works best at 2000–3000 psi (13.5–21MPa,
135–207 bar), although it will work at 1000–2000 psi (7–
13.5 MPa, 70–135 bar). For best results at pre ssu re s
less than 2000 psi (13.5 MPa, 135 bar), order the following applicable spring:
501510 Recommended for 1000–2000 psi
(7–13.5 MPa, 70–135 bar). Red color.
501511 Recommended for 0–1000 psi
(0–7MPa, 0–70 bar) range. Blue color.
(Standard on model 217576)
Optional Valve Seat 206523
For use in low flow rate applications.
12 306878ZAA
Technical Specifications
Technical Specifications
High Pressure Fluid Regulators
US Metric
Maximum Fluid Inlet Pressure 3000 psi 21 MPa, 207 bar
Regulated Fluid Pressure Range
Model 206661 1000–3000 psi 7–21 MPa, 70–207 bar
Model 217576 200–1000 psi 1.4–7 MPa, 14–70 bar
Maximum Flow Rate 3.5 gpm with 70 centipoise fluid at
75°F
Fluid Inlet 3/8 npt(f)
Fluid Outlet (two) 1/4 npt(f)
Height 6 in. 152 mm
Diameter 2.687 in. 68 mm
Wetted Parts Tungsten Carbide, Copper, Cadmium and Zinc-plated Steels, Acetal
Homopolymer, PTFE, Chrome-plated Stainless Steel
Canadian Registration Number (CRN)
Alberta: 0C04874.52
Ontario: 0C4874.5R1
Notes
®
Loctite
is a registered trademark of the Henkel Corporatio n
Models 206661 and 217576
13.25 liters/min with 70 centipoise fluid
at 23°C
306878ZAA 13
Graco Standard Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written
recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs
will be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.
Graco Information
For the latest information about Graco products, visit www.graco.com.
For patent information, see www.graco.com/patents.
TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: 612-623-6921 or Toll Free: 1-800-328-0211 Fax: 612-378-3505
All written and visual data contained in this document reflects the latest product information available at the time of publication.
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 1992, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 306878
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
www.graco.com
Revision ZAA, June 2018
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